db_pr.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:29k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998, 1999, 2000
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: db_pr.c,v 11.46 2001/01/22 17:25:06 krinsky Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <ctype.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #endif
- #include "db_int.h"
- #include "db_page.h"
- #include "btree.h"
- #include "hash.h"
- #include "qam.h"
- #include "db_am.h"
- #include "db_verify.h"
- static int __db_bmeta __P((DB *, FILE *, BTMETA *, u_int32_t));
- static int __db_hmeta __P((DB *, FILE *, HMETA *, u_int32_t));
- static void __db_meta __P((DB *, DBMETA *, FILE *, FN const *, u_int32_t));
- static const char *__db_dbtype_to_string __P((DB *));
- static void __db_prdb __P((DB *, FILE *, u_int32_t));
- static FILE *__db_prinit __P((FILE *));
- static void __db_proff __P((void *));
- static int __db_prtree __P((DB *, u_int32_t));
- static void __db_psize __P((DB *));
- static int __db_qmeta __P((DB *, FILE *, QMETA *, u_int32_t));
- /*
- * 64K is the maximum page size, so by default we check for offsets larger
- * than that, and, where possible, we refine the test.
- */
- #define PSIZE_BOUNDARY (64 * 1024 + 1)
- static size_t set_psize = PSIZE_BOUNDARY;
- static FILE *set_fp; /* Output file descriptor. */
- /*
- * __db_loadme --
- * A nice place to put a breakpoint.
- *
- * PUBLIC: void __db_loadme __P((void));
- */
- void
- __db_loadme()
- {
- getpid();
- }
- /*
- * __db_dump --
- * Dump the tree to a file.
- *
- * PUBLIC: int __db_dump __P((DB *, char *, char *));
- */
- int
- __db_dump(dbp, op, name)
- DB *dbp;
- char *op, *name;
- {
- FILE *fp, *save_fp;
- u_int32_t flags;
- COMPQUIET(save_fp, NULL);
- if (set_psize == PSIZE_BOUNDARY)
- __db_psize(dbp);
- if (name != NULL) {
- if ((fp = fopen(name, "w")) == NULL)
- return (__os_get_errno());
- save_fp = set_fp;
- set_fp = fp;
- } else
- fp = __db_prinit(NULL);
- for (flags = 0; *op != ' '; ++op)
- switch (*op) {
- case 'a':
- LF_SET(DB_PR_PAGE);
- break;
- case 'h':
- break;
- case 'r':
- LF_SET(DB_PR_RECOVERYTEST);
- break;
- default:
- return (EINVAL);
- }
- __db_prdb(dbp, fp, flags);
- fprintf(fp, "%sn", DB_LINE);
- (void)__db_prtree(dbp, flags);
- fflush(fp);
- if (name != NULL) {
- fclose(fp);
- set_fp = save_fp;
- }
- return (0);
- }
- /*
- * __db_prdb --
- * Print out the DB structure information.
- */
- static void
- __db_prdb(dbp, fp, flags)
- DB *dbp;
- FILE *fp;
- u_int32_t flags;
- {
- static const FN fn[] = {
- { DB_AM_DISCARD, "discard cached pages" },
- { DB_AM_DUP, "duplicates" },
- { DB_AM_INMEM, "in-memory" },
- { DB_AM_PGDEF, "default page size" },
- { DB_AM_RDONLY, "read-only" },
- { DB_AM_SUBDB, "multiple-databases" },
- { DB_AM_SWAP, "needswap" },
- { DB_BT_RECNUM, "btree:recnum" },
- { DB_BT_REVSPLIT, "btree:no reverse split" },
- { DB_DBM_ERROR, "dbm/ndbm error" },
- { DB_OPEN_CALLED, "DB->open called" },
- { DB_RE_DELIMITER, "recno:delimiter" },
- { DB_RE_FIXEDLEN, "recno:fixed-length" },
- { DB_RE_PAD, "recno:pad" },
- { DB_RE_RENUMBER, "recno:renumber" },
- { DB_RE_SNAPSHOT, "recno:snapshot" },
- { 0, NULL }
- };
- BTREE *bt;
- HASH *h;
- QUEUE *q;
- COMPQUIET(flags, 0);
- fprintf(fp,
- "In-memory DB structure:n%s: %#lx",
- __db_dbtype_to_string(dbp), (u_long)dbp->flags);
- __db_prflags(dbp->flags, fn, fp);
- fprintf(fp, "n");
- switch (dbp->type) {
- case DB_BTREE:
- case DB_RECNO:
- bt = dbp->bt_internal;
- fprintf(fp, "bt_meta: %lu bt_root: %lun",
- (u_long)bt->bt_meta, (u_long)bt->bt_root);
- fprintf(fp, "bt_maxkey: %lu bt_minkey: %lun",
- (u_long)bt->bt_maxkey, (u_long)bt->bt_minkey);
- fprintf(fp, "bt_compare: %#lx bt_prefix: %#lxn",
- (u_long)bt->bt_compare, (u_long)bt->bt_prefix);
- fprintf(fp, "bt_lpgno: %lun", (u_long)bt->bt_lpgno);
- if (dbp->type == DB_RECNO) {
- fprintf(fp,
- "re_pad: %#lx re_delim: %#lx re_len: %lu re_source: %sn",
- (u_long)bt->re_pad, (u_long)bt->re_delim,
- (u_long)bt->re_len,
- bt->re_source == NULL ? "" : bt->re_source);
- fprintf(fp, "re_modified: %d re_eof: %d re_last: %lun",
- bt->re_modified, bt->re_eof, (u_long)bt->re_last);
- }
- break;
- case DB_HASH:
- h = dbp->h_internal;
- fprintf(fp, "meta_pgno: %lun", (u_long)h->meta_pgno);
- fprintf(fp, "h_ffactor: %lun", (u_long)h->h_ffactor);
- fprintf(fp, "h_nelem: %lun", (u_long)h->h_nelem);
- fprintf(fp, "h_hash: %#lxn", (u_long)h->h_hash);
- break;
- case DB_QUEUE:
- q = dbp->q_internal;
- fprintf(fp, "q_meta: %lun", (u_long)q->q_meta);
- fprintf(fp, "q_root: %lun", (u_long)q->q_root);
- fprintf(fp, "re_pad: %#lx re_len: %lun",
- (u_long)q->re_pad, (u_long)q->re_len);
- fprintf(fp, "rec_page: %lun", (u_long)q->rec_page);
- fprintf(fp, "page_ext: %lun", (u_long)q->page_ext);
- break;
- default:
- break;
- }
- }
- /*
- * __db_prtree --
- * Print out the entire tree.
- */
- static int
- __db_prtree(dbp, flags)
- DB *dbp;
- u_int32_t flags;
- {
- PAGE *h;
- db_pgno_t i, last;
- int ret;
- if (set_psize == PSIZE_BOUNDARY)
- __db_psize(dbp);
- if (dbp->type == DB_QUEUE) {
- ret = __db_prqueue(dbp, flags);
- goto done;
- }
- /* Find out the page number of the last page in the database. */
- if ((ret = memp_fget(dbp->mpf, &last, DB_MPOOL_LAST, &h)) != 0)
- return (ret);
- if ((ret = memp_fput(dbp->mpf, h, 0)) != 0)
- return (ret);
- /* Dump each page. */
- for (i = 0; i <= last; ++i) {
- if ((ret = memp_fget(dbp->mpf, &i, 0, &h)) != 0)
- return (ret);
- (void)__db_prpage(dbp, h, flags);
- if ((ret = memp_fput(dbp->mpf, h, 0)) != 0)
- return (ret);
- }
- done:
- (void)fflush(__db_prinit(NULL));
- return (0);
- }
- /*
- * __db_meta --
- * Print out common metadata information.
- */
- static void
- __db_meta(dbp, dbmeta, fp, fn, flags)
- DB *dbp;
- DBMETA *dbmeta;
- FILE *fp;
- FN const *fn;
- u_int32_t flags;
- {
- PAGE *h;
- int cnt;
- db_pgno_t pgno;
- u_int8_t *p;
- int ret;
- const char *sep;
- fprintf(fp, "tmagic: %#lxn", (u_long)dbmeta->magic);
- fprintf(fp, "tversion: %lun", (u_long)dbmeta->version);
- fprintf(fp, "tpagesize: %lun", (u_long)dbmeta->pagesize);
- fprintf(fp, "ttype: %lun", (u_long)dbmeta->type);
- fprintf(fp, "tkeys: %lutrecords: %lun",
- (u_long)dbmeta->key_count, (u_long)dbmeta->record_count);
- if (!LF_ISSET(DB_PR_RECOVERYTEST)) {
- /*
- * If we're doing recovery testing, don't display the free
- * list, it may have changed and that makes the dump diff
- * not work.
- */
- fprintf(fp, "tfree list: %lu", (u_long)dbmeta->free);
- for (pgno = dbmeta->free,
- cnt = 0, sep = ", "; pgno != PGNO_INVALID;) {
- if ((ret = memp_fget(dbp->mpf, &pgno, 0, &h)) != 0) {
- fprintf(fp,
- "Unable to retrieve free-list page: %lu: %sn",
- (u_long)pgno, db_strerror(ret));
- break;
- }
- pgno = h->next_pgno;
- (void)memp_fput(dbp->mpf, h, 0);
- fprintf(fp, "%s%lu", sep, (u_long)pgno);
- if (++cnt % 10 == 0) {
- fprintf(fp, "n");
- cnt = 0;
- sep = "t";
- } else
- sep = ", ";
- }
- fprintf(fp, "n");
- }
- if (fn != NULL) {
- fprintf(fp, "tflags: %#lx", (u_long)dbmeta->flags);
- __db_prflags(dbmeta->flags, fn, fp);
- fprintf(fp, "n");
- }
- fprintf(fp, "tuid: ");
- for (p = (u_int8_t *)dbmeta->uid,
- cnt = 0; cnt < DB_FILE_ID_LEN; ++cnt) {
- fprintf(fp, "%x", *p++);
- if (cnt < DB_FILE_ID_LEN - 1)
- fprintf(fp, " ");
- }
- fprintf(fp, "n");
- }
- /*
- * __db_bmeta --
- * Print out the btree meta-data page.
- */
- static int
- __db_bmeta(dbp, fp, h, flags)
- DB *dbp;
- FILE *fp;
- BTMETA *h;
- u_int32_t flags;
- {
- static const FN mfn[] = {
- { BTM_DUP, "duplicates" },
- { BTM_RECNO, "recno" },
- { BTM_RECNUM, "btree:recnum" },
- { BTM_FIXEDLEN, "recno:fixed-length" },
- { BTM_RENUMBER, "recno:renumber" },
- { BTM_SUBDB, "multiple-databases" },
- { 0, NULL }
- };
- __db_meta(dbp, (DBMETA *)h, fp, mfn, flags);
- fprintf(fp, "tmaxkey: %lu minkey: %lun",
- (u_long)h->maxkey, (u_long)h->minkey);
- if (dbp->type == DB_RECNO)
- fprintf(fp, "tre_len: %#lx re_pad: %lun",
- (u_long)h->re_len, (u_long)h->re_pad);
- fprintf(fp, "troot: %lun", (u_long)h->root);
- return (0);
- }
- /*
- * __db_hmeta --
- * Print out the hash meta-data page.
- */
- static int
- __db_hmeta(dbp, fp, h, flags)
- DB *dbp;
- FILE *fp;
- HMETA *h;
- u_int32_t flags;
- {
- static const FN mfn[] = {
- { DB_HASH_DUP, "duplicates" },
- { DB_HASH_SUBDB, "multiple-databases" },
- { 0, NULL }
- };
- int i;
- __db_meta(dbp, (DBMETA *)h, fp, mfn, flags);
- fprintf(fp, "tmax_bucket: %lun", (u_long)h->max_bucket);
- fprintf(fp, "thigh_mask: %#lxn", (u_long)h->high_mask);
- fprintf(fp, "tlow_mask: %#lxn", (u_long)h->low_mask);
- fprintf(fp, "tffactor: %lun", (u_long)h->ffactor);
- fprintf(fp, "tnelem: %lun", (u_long)h->nelem);
- fprintf(fp, "th_charkey: %#lxn", (u_long)h->h_charkey);
- fprintf(fp, "tspare points: ");
- for (i = 0; i < NCACHED; i++)
- fprintf(fp, "%lu ", (u_long)h->spares[i]);
- fprintf(fp, "n");
- return (0);
- }
- /*
- * __db_qmeta --
- * Print out the queue meta-data page.
- */
- static int
- __db_qmeta(dbp, fp, h, flags)
- DB *dbp;
- FILE *fp;
- QMETA *h;
- u_int32_t flags;
- {
- __db_meta(dbp, (DBMETA *)h, fp, NULL, flags);
- fprintf(fp, "tfirst_recno: %lun", (u_long)h->first_recno);
- fprintf(fp, "tcur_recno: %lun", (u_long)h->cur_recno);
- fprintf(fp, "tre_len: %#lx re_pad: %lun",
- (u_long)h->re_len, (u_long)h->re_pad);
- fprintf(fp, "trec_page: %lun", (u_long)h->rec_page);
- fprintf(fp, "tpage_ext: %lun", (u_long)h->page_ext);
- return (0);
- }
- /*
- * __db_prnpage
- * -- Print out a specific page.
- *
- * PUBLIC: int __db_prnpage __P((DB *, db_pgno_t));
- */
- int
- __db_prnpage(dbp, pgno)
- DB *dbp;
- db_pgno_t pgno;
- {
- PAGE *h;
- int ret;
- if (set_psize == PSIZE_BOUNDARY)
- __db_psize(dbp);
- if ((ret = memp_fget(dbp->mpf, &pgno, 0, &h)) != 0)
- return (ret);
- ret = __db_prpage(dbp, h, DB_PR_PAGE);
- (void)fflush(__db_prinit(NULL));
- (void)memp_fput(dbp->mpf, h, 0);
- return (ret);
- }
- /*
- * __db_prpage
- * -- Print out a page.
- *
- * PUBLIC: int __db_prpage __P((DB *, PAGE *, u_int32_t));
- */
- int
- __db_prpage(dbp, h, flags)
- DB *dbp;
- PAGE *h;
- u_int32_t flags;
- {
- BINTERNAL *bi;
- BKEYDATA *bk;
- BTREE *t;
- FILE *fp;
- HOFFPAGE a_hkd;
- QAMDATA *qp, *qep;
- RINTERNAL *ri;
- db_indx_t dlen, len, i;
- db_pgno_t pgno;
- db_recno_t recno;
- int deleted, ret;
- const char *s;
- u_int32_t qlen;
- u_int8_t *ep, *hk, *p;
- void *sp;
- fp = __db_prinit(NULL);
- /*
- * If we're doing recovery testing and this page is P_INVALID,
- * assume it's a page that's on the free list, and don't display it.
- */
- if (LF_ISSET(DB_PR_RECOVERYTEST) && TYPE(h) == P_INVALID)
- return (0);
- s = __db_pagetype_to_string(TYPE(h));
- if (s == NULL) {
- fprintf(fp, "ILLEGAL PAGE TYPE: page: %lu type: %lun",
- (u_long)h->pgno, (u_long)TYPE(h));
- return (1);
- }
- /* Page number, page type. */
- fprintf(fp, "page %lu: %s level: %lu",
- (u_long)h->pgno, s, (u_long)h->level);
- /* Record count. */
- if (TYPE(h) == P_IBTREE ||
- TYPE(h) == P_IRECNO || (TYPE(h) == P_LRECNO &&
- h->pgno == ((BTREE *)dbp->bt_internal)->bt_root))
- fprintf(fp, " records: %lu", (u_long)RE_NREC(h));
- /* LSN. */
- if (!LF_ISSET(DB_PR_RECOVERYTEST))
- fprintf(fp, " (lsn.file: %lu lsn.offset: %lu)n",
- (u_long)LSN(h).file, (u_long)LSN(h).offset);
- switch (TYPE(h)) {
- case P_BTREEMETA:
- return (__db_bmeta(dbp, fp, (BTMETA *)h, flags));
- case P_HASHMETA:
- return (__db_hmeta(dbp, fp, (HMETA *)h, flags));
- case P_QAMMETA:
- return (__db_qmeta(dbp, fp, (QMETA *)h, flags));
- case P_QAMDATA: /* Should be meta->start. */
- if (!LF_ISSET(DB_PR_PAGE))
- return (0);
- qlen = ((QUEUE *)dbp->q_internal)->re_len;
- recno = (h->pgno - 1) * QAM_RECNO_PER_PAGE(dbp) + 1;
- i = 0;
- qep = (QAMDATA *)((u_int8_t *)h + set_psize - qlen);
- for (qp = QAM_GET_RECORD(dbp, h, i); qp < qep;
- recno++, i++, qp = QAM_GET_RECORD(dbp, h, i)) {
- if (!F_ISSET(qp, QAM_SET))
- continue;
- fprintf(fp, "%s",
- F_ISSET(qp, QAM_VALID) ? "t" : " D");
- fprintf(fp, "[%03lu] %4lu ",
- (u_long)recno, (u_long)qp - (u_long)h);
- __db_pr(qp->data, qlen);
- }
- return (0);
- }
- /* LSN. */
- if (LF_ISSET(DB_PR_RECOVERYTEST))
- fprintf(fp, " (lsn.file: %lu lsn.offset: %lu)n",
- (u_long)LSN(h).file, (u_long)LSN(h).offset);
- t = dbp->bt_internal;
- s = "t";
- if (TYPE(h) != P_IBTREE && TYPE(h) != P_IRECNO) {
- fprintf(fp, "%sprev: %4lu next: %4lu",
- s, (u_long)PREV_PGNO(h), (u_long)NEXT_PGNO(h));
- s = " ";
- }
- if (TYPE(h) == P_OVERFLOW) {
- fprintf(fp, "%sref cnt: %4lu ", s, (u_long)OV_REF(h));
- __db_pr((u_int8_t *)h + P_OVERHEAD, OV_LEN(h));
- return (0);
- }
- fprintf(fp, "%sentries: %4lu", s, (u_long)NUM_ENT(h));
- fprintf(fp, " offset: %4lun", (u_long)HOFFSET(h));
- if (TYPE(h) == P_INVALID || !LF_ISSET(DB_PR_PAGE))
- return (0);
- ret = 0;
- for (i = 0; i < NUM_ENT(h); i++) {
- if (P_ENTRY(h, i) - (u_int8_t *)h < P_OVERHEAD ||
- (size_t)(P_ENTRY(h, i) - (u_int8_t *)h) >= set_psize) {
- fprintf(fp,
- "ILLEGAL PAGE OFFSET: indx: %lu of %lun",
- (u_long)i, (u_long)h->inp[i]);
- ret = EINVAL;
- continue;
- }
- deleted = 0;
- switch (TYPE(h)) {
- case P_HASH:
- case P_IBTREE:
- case P_IRECNO:
- sp = P_ENTRY(h, i);
- break;
- case P_LBTREE:
- sp = P_ENTRY(h, i);
- deleted = i % 2 == 0 &&
- B_DISSET(GET_BKEYDATA(h, i + O_INDX)->type);
- break;
- case P_LDUP:
- case P_LRECNO:
- sp = P_ENTRY(h, i);
- deleted = B_DISSET(GET_BKEYDATA(h, i)->type);
- break;
- default:
- fprintf(fp,
- "ILLEGAL PAGE ITEM: %lun", (u_long)TYPE(h));
- ret = EINVAL;
- continue;
- }
- fprintf(fp, "%s", deleted ? " D" : "t");
- fprintf(fp, "[%03lu] %4lu ", (u_long)i, (u_long)h->inp[i]);
- switch (TYPE(h)) {
- case P_HASH:
- hk = sp;
- switch (HPAGE_PTYPE(hk)) {
- case H_OFFDUP:
- memcpy(&pgno,
- HOFFDUP_PGNO(hk), sizeof(db_pgno_t));
- fprintf(fp,
- "%4lu [offpage dups]n", (u_long)pgno);
- break;
- case H_DUPLICATE:
- /*
- * If this is the first item on a page, then
- * we cannot figure out how long it is, so
- * we only print the first one in the duplicate
- * set.
- */
- if (i != 0)
- len = LEN_HKEYDATA(h, 0, i);
- else
- len = 1;
- fprintf(fp, "Duplicates:n");
- for (p = HKEYDATA_DATA(hk),
- ep = p + len; p < ep;) {
- memcpy(&dlen, p, sizeof(db_indx_t));
- p += sizeof(db_indx_t);
- fprintf(fp, "tt");
- __db_pr(p, dlen);
- p += sizeof(db_indx_t) + dlen;
- }
- break;
- case H_KEYDATA:
- __db_pr(HKEYDATA_DATA(hk),
- LEN_HKEYDATA(h, i == 0 ? set_psize : 0, i));
- break;
- case H_OFFPAGE:
- memcpy(&a_hkd, hk, HOFFPAGE_SIZE);
- fprintf(fp,
- "overflow: total len: %4lu page: %4lun",
- (u_long)a_hkd.tlen, (u_long)a_hkd.pgno);
- break;
- }
- break;
- case P_IBTREE:
- bi = sp;
- fprintf(fp, "count: %4lu pgno: %4lu type: %4lu",
- (u_long)bi->nrecs, (u_long)bi->pgno,
- (u_long)bi->type);
- switch (B_TYPE(bi->type)) {
- case B_KEYDATA:
- __db_pr(bi->data, bi->len);
- break;
- case B_DUPLICATE:
- case B_OVERFLOW:
- __db_proff(bi->data);
- break;
- default:
- fprintf(fp, "ILLEGAL BINTERNAL TYPE: %lun",
- (u_long)B_TYPE(bi->type));
- ret = EINVAL;
- break;
- }
- break;
- case P_IRECNO:
- ri = sp;
- fprintf(fp, "entries %4lu pgno %4lun",
- (u_long)ri->nrecs, (u_long)ri->pgno);
- break;
- case P_LBTREE:
- case P_LDUP:
- case P_LRECNO:
- bk = sp;
- switch (B_TYPE(bk->type)) {
- case B_KEYDATA:
- __db_pr(bk->data, bk->len);
- break;
- case B_DUPLICATE:
- case B_OVERFLOW:
- __db_proff(bk);
- break;
- default:
- fprintf(fp,
- "ILLEGAL DUPLICATE/LBTREE/LRECNO TYPE: %lun",
- (u_long)B_TYPE(bk->type));
- ret = EINVAL;
- break;
- }
- break;
- }
- }
- (void)fflush(fp);
- return (ret);
- }
- /*
- * __db_pr --
- * Print out a data element.
- *
- * PUBLIC: void __db_pr __P((u_int8_t *, u_int32_t));
- */
- void
- __db_pr(p, len)
- u_int8_t *p;
- u_int32_t len;
- {
- FILE *fp;
- u_int lastch;
- int i;
- fp = __db_prinit(NULL);
- fprintf(fp, "len: %3lu", (u_long)len);
- lastch = '.';
- if (len != 0) {
- fprintf(fp, " data: ");
- for (i = len <= 20 ? len : 20; i > 0; --i, ++p) {
- lastch = *p;
- if (isprint((int)*p) || *p == 'n')
- fprintf(fp, "%c", *p);
- else
- fprintf(fp, "0x%.2x", (u_int)*p);
- }
- if (len > 20) {
- fprintf(fp, "...");
- lastch = '.';
- }
- }
- if (lastch != 'n')
- fprintf(fp, "n");
- }
- /*
- * __db_prdbt --
- * Print out a DBT data element.
- *
- * PUBLIC: int __db_prdbt __P((DBT *, int, const char *, void *,
- * PUBLIC: int (*)(void *, const void *), int, VRFY_DBINFO *));
- */
- int
- __db_prdbt(dbtp, checkprint, prefix, handle, callback, is_recno, vdp)
- DBT *dbtp;
- int checkprint;
- const char *prefix;
- void *handle;
- int (*callback) __P((void *, const void *));
- int is_recno;
- VRFY_DBINFO *vdp;
- {
- static const char hex[] = "0123456789abcdef";
- db_recno_t recno;
- u_int32_t len;
- int ret;
- #define DBTBUFLEN 100
- char *p, *hp, buf[DBTBUFLEN], hbuf[DBTBUFLEN];
- if (vdp != NULL) {
- /*
- * If vdp is non-NULL, we might be the first key in the
- * "fake" subdatabase used for key/data pairs we can't
- * associate with a known subdb.
- *
- * Check and clear the SALVAGE_PRINTHEADER flag; if
- * it was set, print a subdatabase header.
- */
- if (F_ISSET(vdp, SALVAGE_PRINTHEADER))
- (void)__db_prheader(NULL, "__OTHER__", 0, 0,
- handle, callback, vdp, 0);
- F_CLR(vdp, SALVAGE_PRINTHEADER);
- F_SET(vdp, SALVAGE_PRINTFOOTER);
- }
- /*
- * !!!
- * This routine is the routine that dumps out items in the format
- * used by db_dump(1) and db_load(1). This means that the format
- * cannot change.
- */
- if (prefix != NULL && (ret = callback(handle, prefix)) != 0)
- return (ret);
- if (is_recno) {
- /*
- * We're printing a record number, and this has to be done
- * in a platform-independent way. So we use the numeral in
- * straight ASCII.
- */
- __ua_memcpy(&recno, dbtp->data, sizeof(recno));
- snprintf(buf, DBTBUFLEN, "%lu", (u_long)recno);
- /* If we're printing data as hex, print keys as hex too. */
- if (!checkprint) {
- for (len = strlen(buf), p = buf, hp = hbuf;
- len-- > 0; ++p) {
- *hp++ = hex[(u_int8_t)(*p & 0xf0) >> 4];
- *hp++ = hex[*p & 0x0f];
- }
- *hp = ' ';
- ret = callback(handle, hbuf);
- } else
- ret = callback(handle, buf);
- if (ret != 0)
- return (ret);
- } else if (checkprint) {
- for (len = dbtp->size, p = dbtp->data; len--; ++p)
- if (isprint((int)*p)) {
- if (*p == '\' &&
- (ret = callback(handle, "\")) != 0)
- return (ret);
- snprintf(buf, DBTBUFLEN, "%c", *p);
- if ((ret = callback(handle, buf)) != 0)
- return (ret);
- } else {
- snprintf(buf, DBTBUFLEN, "\%c%c",
- hex[(u_int8_t)(*p & 0xf0) >> 4],
- hex[*p & 0x0f]);
- if ((ret = callback(handle, buf)) != 0)
- return (ret);
- }
- } else
- for (len = dbtp->size, p = dbtp->data; len--; ++p) {
- snprintf(buf, DBTBUFLEN, "%c%c",
- hex[(u_int8_t)(*p & 0xf0) >> 4],
- hex[*p & 0x0f]);
- if ((ret = callback(handle, buf)) != 0)
- return (ret);
- }
- return (callback(handle, "n"));
- }
- /*
- * __db_proff --
- * Print out an off-page element.
- */
- static void
- __db_proff(vp)
- void *vp;
- {
- FILE *fp;
- BOVERFLOW *bo;
- fp = __db_prinit(NULL);
- bo = vp;
- switch (B_TYPE(bo->type)) {
- case B_OVERFLOW:
- fprintf(fp, "overflow: total len: %4lu page: %4lun",
- (u_long)bo->tlen, (u_long)bo->pgno);
- break;
- case B_DUPLICATE:
- fprintf(fp, "duplicate: page: %4lun", (u_long)bo->pgno);
- break;
- }
- }
- /*
- * __db_prflags --
- * Print out flags values.
- *
- * PUBLIC: void __db_prflags __P((u_int32_t, const FN *, FILE *));
- */
- void
- __db_prflags(flags, fn, fp)
- u_int32_t flags;
- FN const *fn;
- FILE *fp;
- {
- const FN *fnp;
- int found;
- const char *sep;
- sep = " (";
- for (found = 0, fnp = fn; fnp->mask != 0; ++fnp)
- if (LF_ISSET(fnp->mask)) {
- fprintf(fp, "%s%s", sep, fnp->name);
- sep = ", ";
- found = 1;
- }
- if (found)
- fprintf(fp, ")");
- }
- /*
- * __db_prinit --
- * Initialize tree printing routines.
- */
- static FILE *
- __db_prinit(fp)
- FILE *fp;
- {
- if (set_fp == NULL)
- set_fp = fp == NULL ? stdout : fp;
- return (set_fp);
- }
- /*
- * __db_psize --
- * Get the page size.
- */
- static void
- __db_psize(dbp)
- DB *dbp;
- {
- DBMETA *mp;
- db_pgno_t pgno;
- set_psize = PSIZE_BOUNDARY - 1;
- pgno = PGNO_BASE_MD;
- if (memp_fget(dbp->mpf, &pgno, 0, &mp) != 0)
- return;
- switch (mp->magic) {
- case DB_BTREEMAGIC:
- case DB_HASHMAGIC:
- case DB_QAMMAGIC:
- set_psize = mp->pagesize;
- break;
- }
- (void)memp_fput(dbp->mpf, mp, 0);
- }
- /*
- * __db_dbtype_to_string --
- * Return the name of the database type.
- */
- static const char *
- __db_dbtype_to_string(dbp)
- DB *dbp;
- {
- switch (dbp->type) {
- case DB_BTREE:
- return ("btree");
- case DB_HASH:
- return ("hash");
- break;
- case DB_RECNO:
- return ("recno");
- break;
- case DB_QUEUE:
- return ("queue");
- default:
- return ("UNKNOWN TYPE");
- }
- /* NOTREACHED */
- }
- /*
- * __db_pagetype_to_string --
- * Return the name of the specified page type.
- *
- * PUBLIC: const char *__db_pagetype_to_string __P((u_int32_t));
- */
- const char *
- __db_pagetype_to_string(type)
- u_int32_t type;
- {
- char *s;
- s = NULL;
- switch (type) {
- case P_BTREEMETA:
- s = "btree metadata";
- break;
- case P_LDUP:
- s = "duplicate";
- break;
- case P_HASH:
- s = "hash";
- break;
- case P_HASHMETA:
- s = "hash metadata";
- break;
- case P_IBTREE:
- s = "btree internal";
- break;
- case P_INVALID:
- s = "invalid";
- break;
- case P_IRECNO:
- s = "recno internal";
- break;
- case P_LBTREE:
- s = "btree leaf";
- break;
- case P_LRECNO:
- s = "recno leaf";
- break;
- case P_OVERFLOW:
- s = "overflow";
- break;
- case P_QAMMETA:
- s = "queue metadata";
- break;
- case P_QAMDATA:
- s = "queue";
- break;
- default:
- /* Just return a NULL. */
- break;
- }
- return (s);
- }
- /*
- * __db_prheader --
- * Write out header information in the format expected by db_load.
- *
- * PUBLIC: int __db_prheader __P((DB *, char *, int, int, void *,
- * PUBLIC: int (*)(void *, const void *), VRFY_DBINFO *, db_pgno_t));
- */
- int
- __db_prheader(dbp, subname, pflag, keyflag, handle, callback, vdp, meta_pgno)
- DB *dbp;
- char *subname;
- int pflag, keyflag;
- void *handle;
- int (*callback) __P((void *, const void *));
- VRFY_DBINFO *vdp;
- db_pgno_t meta_pgno;
- {
- DB_BTREE_STAT *btsp;
- DB_ENV *dbenv;
- DB_HASH_STAT *hsp;
- DB_QUEUE_STAT *qsp;
- VRFY_PAGEINFO *pip;
- char *buf;
- int buflen, ret, t_ret;
- u_int32_t dbtype;
- btsp = NULL;
- hsp = NULL;
- qsp = NULL;
- ret = 0;
- buf = NULL;
- COMPQUIET(buflen, 0);
- if (dbp == NULL)
- dbenv = NULL;
- else
- dbenv = dbp->dbenv;
- /*
- * If we've been passed a verifier statistics object, use
- * that; we're being called in a context where dbp->stat
- * is unsafe.
- */
- if (vdp != NULL) {
- if ((ret = __db_vrfy_getpageinfo(vdp, meta_pgno, &pip)) != 0)
- return (ret);
- } else
- pip = NULL;
- /*
- * If dbp is NULL, we're being called from inside __db_prdbt,
- * and this is a special subdatabase for "lost" items. Make it a btree.
- * Otherwise, set dbtype to the appropriate type for the specified
- * meta page, or the type of the dbp.
- */
- if (dbp == NULL)
- dbtype = DB_BTREE;
- else if (pip != NULL)
- switch (pip->type) {
- case P_BTREEMETA:
- if (F_ISSET(pip, VRFY_IS_RECNO))
- dbtype = DB_RECNO;
- else
- dbtype = DB_BTREE;
- break;
- case P_HASHMETA:
- dbtype = DB_HASH;
- break;
- default:
- /*
- * If the meta page is of a bogus type, it's
- * because we have a badly corrupt database.
- * (We must be in the verifier for pip to be non-NULL.)
- * Pretend we're a Btree and salvage what we can.
- */
- DB_ASSERT(F_ISSET(dbp, DB_AM_VERIFYING));
- dbtype = DB_BTREE;
- break;
- }
- else
- dbtype = dbp->type;
- if ((ret = callback(handle, "VERSION=3n")) != 0)
- goto err;
- if (pflag) {
- if ((ret = callback(handle, "format=printn")) != 0)
- goto err;
- } else if ((ret = callback(handle, "format=bytevaluen")) != 0)
- goto err;
- /*
- * 64 bytes is long enough, as a minimum bound, for any of the
- * fields besides subname. Subname can be anything, and so
- * 64 + subname is big enough for all the things we need to print here.
- */
- buflen = 64 + ((subname != NULL) ? strlen(subname) : 0);
- if ((ret = __os_malloc(dbenv, buflen, NULL, &buf)) != 0)
- goto err;
- if (subname != NULL) {
- snprintf(buf, buflen, "database=%sn", subname);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- switch (dbtype) {
- case DB_BTREE:
- if ((ret = callback(handle, "type=btreen")) != 0)
- goto err;
- if (pip != NULL) {
- if (F_ISSET(pip, VRFY_HAS_RECNUMS))
- if ((ret =
- callback(handle, "recnum=1n")) != 0)
- goto err;
- if (pip->bt_maxkey != 0) {
- snprintf(buf, buflen,
- "bt_maxkey=%lun", (u_long)pip->bt_maxkey);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- if (pip->bt_minkey != 0 &&
- pip->bt_minkey != DEFMINKEYPAGE) {
- snprintf(buf, buflen,
- "bt_minkey=%lun", (u_long)pip->bt_minkey);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- break;
- }
- if ((ret = dbp->stat(dbp, &btsp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "DB->stat");
- goto err;
- }
- if (F_ISSET(dbp, DB_BT_RECNUM))
- if ((ret = callback(handle, "recnum=1n")) != 0)
- goto err;
- if (btsp->bt_maxkey != 0) {
- snprintf(buf, buflen,
- "bt_maxkey=%lun", (u_long)btsp->bt_maxkey);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- if (btsp->bt_minkey != 0 && btsp->bt_minkey != DEFMINKEYPAGE) {
- snprintf(buf, buflen,
- "bt_minkey=%lun", (u_long)btsp->bt_minkey);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- break;
- case DB_HASH:
- if ((ret = callback(handle, "type=hashn")) != 0)
- goto err;
- if (pip != NULL) {
- if (pip->h_ffactor != 0) {
- snprintf(buf, buflen,
- "h_ffactor=%lun", (u_long)pip->h_ffactor);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- if (pip->h_nelem != 0) {
- snprintf(buf, buflen,
- "h_nelem=%lun", (u_long)pip->h_nelem);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- break;
- }
- if ((ret = dbp->stat(dbp, &hsp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "DB->stat");
- goto err;
- }
- if (hsp->hash_ffactor != 0) {
- snprintf(buf, buflen,
- "h_ffactor=%lun", (u_long)hsp->hash_ffactor);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- if (hsp->hash_nelem != 0 || hsp->hash_nkeys != 0) {
- snprintf(buf, buflen, "h_nelem=%lun",
- hsp->hash_nelem > hsp->hash_nkeys ?
- (u_long)hsp->hash_nelem : (u_long)hsp->hash_nkeys);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- break;
- case DB_QUEUE:
- if ((ret = callback(handle, "type=queuen")) != 0)
- goto err;
- if (vdp != NULL) {
- snprintf(buf,
- buflen, "re_len=%lun", (u_long)vdp->re_len);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- break;
- }
- if ((ret = dbp->stat(dbp, &qsp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "DB->stat");
- goto err;
- }
- snprintf(buf, buflen, "re_len=%lun", (u_long)qsp->qs_re_len);
- if (qsp->qs_re_pad != 0 && qsp->qs_re_pad != ' ')
- snprintf(buf, buflen, "re_pad=%#xn", qsp->qs_re_pad);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- break;
- case DB_RECNO:
- if ((ret = callback(handle, "type=recnon")) != 0)
- goto err;
- if (pip != NULL) {
- if (F_ISSET(pip, VRFY_IS_RRECNO))
- if ((ret =
- callback(handle, "renumber=1n")) != 0)
- goto err;
- if (pip->re_len > 0) {
- snprintf(buf, buflen,
- "re_len=%lun", (u_long)pip->re_len);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- break;
- }
- if ((ret = dbp->stat(dbp, &btsp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "DB->stat");
- goto err;
- }
- if (F_ISSET(dbp, DB_RE_RENUMBER))
- if ((ret = callback(handle, "renumber=1n")) != 0)
- goto err;
- if (F_ISSET(dbp, DB_RE_FIXEDLEN)) {
- snprintf(buf, buflen,
- "re_len=%lun", (u_long)btsp->bt_re_len);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- if (btsp->bt_re_pad != 0 && btsp->bt_re_pad != ' ') {
- snprintf(buf, buflen, "re_pad=%#xn", btsp->bt_re_pad);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- break;
- case DB_UNKNOWN:
- DB_ASSERT(0); /* Impossible. */
- __db_err(dbp->dbenv, "Impossible DB type in __db_prheader");
- ret = EINVAL;
- goto err;
- }
- if (pip != NULL) {
- if (F_ISSET(pip, VRFY_HAS_DUPS))
- if ((ret = callback(handle, "duplicates=1n")) != 0)
- goto err;
- if (F_ISSET(pip, VRFY_HAS_DUPSORT))
- if ((ret = callback(handle, "dupsort=1n")) != 0)
- goto err;
- /* We should handle page size. XXX */
- } else {
- if (F_ISSET(dbp, DB_AM_DUP))
- if ((ret = callback(handle, "duplicates=1n")) != 0)
- goto err;
- if (F_ISSET(dbp, DB_AM_DUPSORT))
- if ((ret = callback(handle, "dupsort=1n")) != 0)
- goto err;
- if (!F_ISSET(dbp, DB_AM_PGDEF)) {
- snprintf(buf, buflen,
- "db_pagesize=%lun", (u_long)dbp->pgsize);
- if ((ret = callback(handle, buf)) != 0)
- goto err;
- }
- }
- if (keyflag && (ret = callback(handle, "keys=1n")) != 0)
- goto err;
- ret = callback(handle, "HEADER=ENDn");
- err: if (pip != NULL &&
- (t_ret = __db_vrfy_putpageinfo(vdp, pip)) != 0 && ret == 0)
- ret = t_ret;
- if (btsp != NULL)
- __os_free(btsp, 0);
- if (hsp != NULL)
- __os_free(hsp, 0);
- if (qsp != NULL)
- __os_free(qsp, 0);
- if (buf != NULL)
- __os_free(buf, buflen);
- return (ret);
- }
- /*
- * __db_prfooter --
- * Print the footer that marks the end of a DB dump. This is trivial,
- * but for consistency's sake we don't want to put its literal contents
- * in multiple places.
- *
- * PUBLIC: int __db_prfooter __P((void *, int (*)(void *, const void *)));
- */
- int
- __db_prfooter(handle, callback)
- void *handle;
- int (*callback) __P((void *, const void *));
- {
- return (callback(handle, "DATA=ENDn"));
- }